JP2004018094A - Transporting tray - Google Patents

Transporting tray Download PDF

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Publication number
JP2004018094A
JP2004018094A JP2002180257A JP2002180257A JP2004018094A JP 2004018094 A JP2004018094 A JP 2004018094A JP 2002180257 A JP2002180257 A JP 2002180257A JP 2002180257 A JP2002180257 A JP 2002180257A JP 2004018094 A JP2004018094 A JP 2004018094A
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JP
Japan
Prior art keywords
liquid crystal
crystal panel
corner
tcp
face
Prior art date
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Granted
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JP2002180257A
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Japanese (ja)
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JP4073260B2 (en
Inventor
Tsugio Nakazono
中園 次男
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Sharp Corp
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Sharp Corp
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Priority to JP2002180257A priority Critical patent/JP4073260B2/en
Publication of JP2004018094A publication Critical patent/JP2004018094A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To prevent a liquid crystal panel with a tape carrier package (TCP) from easily coming off from a transporting tray by a vibration or a shock during transportation. <P>SOLUTION: A transporting tray 11 is formed of a recess for storing a liquid crystal panel 3 with a TCP. A corner regulating part 7 which contacts, for positional regulation, the side face of the liquid crystal panel 1 in the neighborhood of a corner formed by the TCP 2 superimposing on the terminal end face of the panel 1 is formed in the recess for storage. The curved surface of the part 7 is structured in a two-stage fillet, and by setting the lower side radius of the curved face smaller, the contact face between the flat face part of the part 7 and the side face of the panel 1 becomes bigger. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、電子機器、OA(Office Automation)端末機、および広告表示などに使用される表示素子や電子部品等の搬送トレイに関するものである。
【0002】
【従来の技術】
従来から、表示素子や電子部品等の搬送に搬送トレイが用いられている。製造された表示素子等を出荷すべく搬送する際には、表示素子等を搬送トレイ内に載置し、搬送トレイを多段に積み重ねて例えば段ボールケースに封入する作業が行われる。このように、表示素子等を搬送トレイに収納して搬送することにより、搬送時における表示素子等の損傷が極力回避できる。
【0003】
このような従来の搬送トレイは、例えば、ポリエチレン樹脂やポリスチレン樹脂等の材料を真空成形金型による成形品が一般的に知られている。例えば、特開平8−324674号公報には、図8、図9に示すように、主面が矩形であり表示エリア等の特定な領域を有する液晶パネル1等の矩形板状体を載せる搬送用のトレイ11が開示されている。
【0004】
この搬送トレイ11は、コーナー部の側面にそれぞれ接触して液晶パネル1を規制する複数のコーナー規制部7と、液晶パネル1の一側面に接触して液晶パネル1の位置を規制する側面規制部8と、液晶パネル1を裏面側又は主面側より受けて保持する受け部9とを備え、受け部9を平面視して前記特定領域以外の箇所を受けるように配設したもので、テープキャリアパッケージ(以下TCPという)2を実装したTCP付き液晶パネル3(図8参照)や、さらにプリント基板4を実装したプリント基板付き液晶パネル5(図10参照)を収容して搬送することができる。
【0005】
【発明が解決しようとする課題】
しかしながら、上記公報においては、図8,図9に示すように、液晶パネル1を保持し、TCP2及びプリント基板4に直接衝撃等のストレスを加えない構造が必要となることから、液晶パネル1端子部端面からTCP2までの距離(図9中のD)が十分に必要となる。
【0006】
この距離が短い場合は、コーナー規制部7がTCP2及びプリント基板4に接触することになり、搬送時の振動や衝撃が直接TCP2やプリント基板4に加わり、液晶パネル1とTCP2、あるいはTCP2とプリント基板4の接続部へ応力が加わり、接続部破損を起こす。
【0007】
また、図10に示すように、搬送トレイ11にTCP付き液晶パネル3の収納部を凹所として設け、この収納部において、TCP2が液晶パネル1の端子部端面と重なってできるコーナー部近傍で液晶パネル1の側面に接触して位置規制するコーナー規制部7を設けている。
【0008】
この場合、図11のコーナー規制部7の拡大斜視図に示すように、稜線のエッジは、金型製作上の制約から、曲面上の形状となり、接触面積が小さくなる。
【0009】
そのため、搬送トレイ11にコーナー規制部7を形成する真空金型を小径ドリルにて微細に切削する必要がある。しかし、小径ドリルで、小さな曲面半径の切削を行なうと、ドリル自体が欠けたり、折れたりし、金型加工が事実上行えないという問題がある。例えば、1.0mmΦの小径ドリルで、曲面半径0.5mmR切削を深さ約7mmにわたって加工する場合、先端がぶれてうまく削れず、そのうえ、深い為、応力がかかり折れやすい。
【0010】
したがって、コーナー規制部7の曲面の半径をある程度大きく設定せざるを得ない。この場合、コーナー規制部7の側面と液晶パネル1の端子部端面との接触面積が極端に縮小し、搬送パネル11が液晶パネル1を保持する力が低下する。これにより、どうしても液晶パネル1が搬送トレイ11の収納部から浮きやすくなり、搬送時の振動や衝撃により、液晶パネル1が搬送トレイ11の収納部より飛び出したり、搬送トレイ11の表面に乗り上げたりし、液晶パネル1が破損するおそれがあった。
【0011】
本発明は、かかる問題を解決するものであり、搬送時の振動や衝撃によりTCP付き液晶パネル3やプリント基板付き液晶パネルが搬送トレイ11から容易に外れないようにすることを目的とする。
【0012】
【課題を解決するための手段】
搬送トレイ11は多段に積み重ねて搬送される。このとき、すぐ上の段の搬送トレイ11に液晶パネル1が当たると破損しやすいので、コーナー規制部7をある程度深く設定して、空間的なゆとりを液晶パネル1の上側に作るようにしている。
【0013】
したがって、受け部9に載せられた液晶パネル1の上面より上の部分では、コーナー規制部7の側面は液晶パネル1の端子部端面に接触しておらず、液晶パネル1の保持に寄与していない。保持に寄与しているのは、受け部9のレベルから一定の高さまでの部分であり、具体的には、受け部9に支えられた液晶パネル1の端子部端面の高さまでである。
【0014】
そこで、コーナー規制部7の曲面の内面を2段階のフィレット構造に仕上げ、下段の曲面半径を上段より小さく設定することで、コーナー規制部7が液晶パネル1に接触する面積を稼ぐことにした。このことによって、搬送トレイ成形用金型の微細な切削加工は、精度と深さが要求されなくなり、切削ドリルの欠けや折れの心配がなくなる。
【0015】
【発明の実施の形態】
本発明の実施形態について図面を参照して説明する。図1は、搬送トレイ11からTCP付き液晶パネル3を真上へ取り出した状態を示す斜視図である。TCP2は、その一端で液晶パネル1の端子部に接続(固定)され、液晶パネル1の外側へ水平に設けられている。
【0016】
TCP2は、液晶パネル1の端子部端面に対して直交方向に配置される。そこで、TCP2が液晶パネル1の端子部端面と重なってできるコーナー部近傍で液晶パネル1の側面に接触して位置規制するコーナー規制部7を搬送トレイ11に設けている。図1に示すように、搬送トレイ11は、受け部9とコーナー規制部7により、液晶パネル1にTCP2を実装したTCP付き液晶パネル3を保持している。
【0017】
図2は、搬送トレイ11のコーナー規制部7周辺の拡大斜視図である。図2に示すように、コーナー規制部7の内面は曲面に仕上げられている。ここで、下側の斜面を下側斜面部7bと呼び、上側を上側斜面部7aと呼ぶことにする。このように、コーナー規制部7の内面は、下側斜面部7bと上側斜面部7aとからなる2段階のフィレット構造を有している。
【0018】
フィレット構造とは、2つの面をつなぐ稜線部に曲面状の加工を施した形状を示す。上側斜面部7aの上端が曲面半径が1mmR、下側斜面部7bの下端の曲面半径が0.5mmRの形状を成している。これらの数値は一例であって限定されるものではない。
【0019】
成形金型の製作は、先に0.5mmRの切削加工を行ない、1mmRの切削加工を後に行ない、切削加工は5°の勾配をつけて行なう。この数値は一例であって勾配をつけずに加工することもあり限定されるものではない。この金型上で熱可塑性のプラスチックシートを加熱、軟化させ、収納物を収納できる形状にし、軟らかい間に、外力(真空、圧空等)を加えて成形し、その後、上記シートを冷却、固化させる。こうして得られた搬送トレイ11の原型では、コーナー規制部7に金型12(図4参照)の形状に起因する段差7c(図3、図4参照)ができるが、真空成形を行なうと、図2のように段差は滑らかになる。
【0020】
以上のようにした作製された搬送トレイ11には、図5の平面図と図7の断面図に示すように、その受け部9上に液晶パネル1を載せるようにして、TCP付き液晶パネル3を凹所に収めることができる。このとき、液晶パネル1の上面は、図7の拡大断面図に示すように、下側斜面部7bと上側斜面部7aの境界の高さとほぼ一致する。したがって、液晶パネル1は下側斜面部7bが形成されている高さより上に位置することはない。
【0021】
また、図6の拡大平面図に示すように、下側斜面部7bは上側斜面部7aより曲面が小さく平面部が広くなっているので、コーナー規制部7の側面と液晶パネル1の端子部端面との接触面積を大きく取れる。これにより、液晶パネル1の保持力が一段と向上する。したがって、搬送時の振動や衝撃に対して、TCP付き液晶パネル3が搬送トレイ11に乗り上げたり、脱落したりすることを防止し、液晶パネル1の破損を防止することが可能となる。
【0022】
さらに、図6における液晶パネル1とTCP2との距離Dを小さくすることができるため、近年のように、パネル自体は小さくて、表示有効面積を大きくした液晶パネル1に対して、本発明は特に有効である。
【0023】
【発明の効果】
以上説明したように本発明によると、収納される表示体(液晶パネル)の位置を規制する搬送トレイのコーナー規制部の側面と表示体の外形部分との接触面積を大きくすることができ、搬送時の振動、衝撃に対しての保持力を向上させ、表示体の破損率を低減させることができる。
【0024】
また、コーナー規制部に2段フィレット構造を用いたことにより、搬送トレイの金型加工において、切削する小径ドリルの欠けや折れといった問題を回避し、金型加工性を向上させることが可能となる。
【図面の簡単な説明】
【図1】本発明の搬送トレイにTCP付き液晶パネルを載せるときの斜視図である。
【図2】図1の円で囲んだ部分の拡大図である。
【図3】搬送トレイの原型の斜視図であって、図2に相当する部分を拡大して示している。
【図4】搬送トレイの原型およびトレイの段面図であって、図2、図3に相当する部分の断面を示している。
【図5】TCP付き液晶パネルを載せた搬送トレイの平面図である。
【図6】図4の円で囲んだ部分の拡大図である。
【図7】TCP付き液晶パネルを載せた搬送トレイの断面図である。
【図8】図7の円で囲んだ部分の拡大図である。
【図9】TCP付き液晶パネルを載せた従来の搬送トレイの斜視図である。
【図10】プリント基板付き液晶パネルを載せた搬送トレイの斜視図である。
【図11】従来の搬送トレイにTCP付き液晶パネルを載せるときの斜視図である。
【図12】図11の円で囲んだ部分の拡大図である。
【符号の説明】
1 液晶パネル(矩形板状体)
2 テープキャリアパッケージ(取付物)
3 TCP付き液晶パネル
7 コーナー規制部
8 側面規制部
7a 上側斜面部
7b 下側斜面部
9 受け部
11 搬送トレイ
12 金型
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an electronic device, an OA (Office Automation) terminal, and a transport tray for display elements and electronic components used for advertisement display and the like.
[0002]
[Prior art]
Conventionally, a transport tray has been used to transport display elements, electronic components, and the like. When the manufactured display elements and the like are transported for shipment, an operation of placing the display elements and the like in a transport tray, stacking the transport trays in multiple stages, and enclosing them in, for example, a cardboard case is performed. As described above, by storing the display elements and the like in the transfer tray and transferring them, damage to the display elements and the like during the transfer can be avoided as much as possible.
[0003]
As such a conventional transport tray, for example, a molded product made of a material such as a polyethylene resin or a polystyrene resin by a vacuum molding die is generally known. For example, Japanese Unexamined Patent Application Publication No. Hei 8-324677 discloses a transfer device for mounting a rectangular plate-shaped body such as a liquid crystal panel 1 having a rectangular main surface and a specific area such as a display area, as shown in FIGS. Tray 11 is disclosed.
[0004]
The transport tray 11 includes a plurality of corner regulating portions 7 that contact the side surfaces of the corner portions to regulate the liquid crystal panel 1, and a side regulating portion that contacts one side surface of the liquid crystal panel 1 to regulate the position of the liquid crystal panel 1. 8 and a receiving portion 9 for receiving and holding the liquid crystal panel 1 from the back surface side or the main surface side. The receiving portion 9 is disposed so as to receive a portion other than the specific area when the receiving portion 9 is viewed in a plan view. A liquid crystal panel with TCP 3 (see FIG. 8) on which a carrier package (hereinafter referred to as TCP) 2 is mounted, and a liquid crystal panel 5 with a printed circuit board on which a printed circuit board 4 is mounted (see FIG. 10) can be transported. .
[0005]
[Problems to be solved by the invention]
However, in the above publication, as shown in FIGS. 8 and 9, a structure that holds the liquid crystal panel 1 and does not directly apply a stress such as an impact to the TCP 2 and the printed board 4 is required. A sufficient distance (D in FIG. 9) from the end face to TCP2 is required.
[0006]
If the distance is short, the corner regulating portion 7 comes into contact with the TCP 2 and the printed circuit board 4, and vibrations and shocks at the time of transport are directly applied to the TCP 2 and the printed circuit board 4, and the liquid crystal panel 1 and the TCP 2 or the TCP 2 and the printed circuit board 4 are printed. A stress is applied to the connection portion of the substrate 4 and the connection portion is damaged.
[0007]
As shown in FIG. 10, a storage portion of the liquid crystal panel with TCP 3 is provided as a recess in the transport tray 11, and in this storage portion, the liquid crystal is formed in the vicinity of a corner portion where the TCP 2 overlaps the terminal end surface of the liquid crystal panel 1. A corner restricting portion 7 is provided which contacts the side surface of the panel 1 to regulate the position.
[0008]
In this case, as shown in the enlarged perspective view of the corner restricting portion 7 in FIG. 11, the edge of the ridge line has a curved shape due to restrictions on the production of the mold, and the contact area is small.
[0009]
Therefore, it is necessary to finely cut the vacuum mold that forms the corner regulating portion 7 on the transport tray 11 with a small-diameter drill. However, when a small-diameter drill is cut with a small radius of curvature, there is a problem that the drill itself is chipped or broken, and die machining cannot be practically performed. For example, when a small-diameter drill of 1.0 mmΦ is used to cut a curved surface with a radius of 0.5 mmR over a depth of about 7 mm, the tip is shaken and cannot be cut well.
[0010]
Therefore, the radius of the curved surface of the corner restricting portion 7 must be set to be somewhat large. In this case, the contact area between the side surface of the corner regulating portion 7 and the end surface of the terminal portion of the liquid crystal panel 1 is extremely reduced, and the force with which the transport panel 11 holds the liquid crystal panel 1 is reduced. As a result, the liquid crystal panel 1 easily floats from the storage portion of the transport tray 11, and the liquid crystal panel 1 jumps out of the storage portion of the transport tray 11 or rides on the surface of the transport tray 11 due to vibration or impact during transport. In addition, the liquid crystal panel 1 may be damaged.
[0011]
An object of the present invention is to solve such a problem, and an object of the present invention is to prevent the liquid crystal panel with TCP 3 and the liquid crystal panel with a printed circuit board from being easily detached from the transport tray 11 due to vibration or impact during transport.
[0012]
[Means for Solving the Problems]
The transport trays 11 are stacked and transported in multiple stages. At this time, if the liquid crystal panel 1 hits the transport tray 11 in the immediately upper stage, the liquid crystal panel 1 is liable to be damaged. Therefore, the corner regulating portion 7 is set to a certain depth to make a space above the liquid crystal panel 1. .
[0013]
Therefore, in a portion above the upper surface of the liquid crystal panel 1 placed on the receiving portion 9, the side surface of the corner regulating portion 7 is not in contact with the terminal end surface of the liquid crystal panel 1, which contributes to the holding of the liquid crystal panel 1. Absent. What contributes to the holding is a portion from the level of the receiving portion 9 to a certain height, specifically, to the height of the terminal portion end face of the liquid crystal panel 1 supported by the receiving portion 9.
[0014]
Therefore, the inner surface of the curved surface of the corner regulating portion 7 is finished in a two-stage fillet structure, and the radius of the lower curved surface is set smaller than that of the upper stage to increase the area where the corner regulating portion 7 contacts the liquid crystal panel 1. This eliminates the need for precision and depth in the fine cutting of the transfer tray forming die, and eliminates the risk of chipping or breakage of the cutting drill.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a state in which the liquid crystal panel with TCP 3 is taken out from the transport tray 11 right above. The TCP 2 is connected (fixed) at one end to a terminal portion of the liquid crystal panel 1, and is provided horizontally outside the liquid crystal panel 1.
[0016]
The TCP 2 is arranged in a direction orthogonal to the terminal end face of the liquid crystal panel 1. In view of this, a corner regulating portion 7 that regulates the position by contacting the side surface of the liquid crystal panel 1 near the corner formed by the TCP 2 overlapping the terminal end surface of the liquid crystal panel 1 is provided on the transport tray 11. As shown in FIG. 1, the transport tray 11 holds the TCP-equipped liquid crystal panel 3 in which the TCP 2 is mounted on the liquid crystal panel 1 by the receiving part 9 and the corner regulating part 7.
[0017]
FIG. 2 is an enlarged perspective view around the corner regulating portion 7 of the transport tray 11. As shown in FIG. 2, the inner surface of the corner regulating portion 7 is finished to a curved surface. Here, the lower slope is referred to as a lower slope 7b, and the upper slope is referred to as an upper slope 7a. As described above, the inner surface of the corner regulating portion 7 has a two-stage fillet structure including the lower slope portion 7b and the upper slope portion 7a.
[0018]
The fillet structure refers to a shape in which a ridge connecting two surfaces is processed into a curved surface. The upper end of the upper slope 7a has a curved surface radius of 1 mmR, and the lower end of the lower slope 7b has a curved radius of 0.5 mmR. These numerical values are examples and are not limited.
[0019]
The production of the molding die is performed by first performing a cutting process of 0.5 mmR, followed by a cutting process of 1 mmR, and the cutting process is performed with a gradient of 5 °. This numerical value is an example, and there is no limitation, since processing may be performed without giving a gradient. On this mold, the thermoplastic plastic sheet is heated and softened to have a shape capable of storing the stored items, and while soft, an external force (vacuum, compressed air, or the like) is applied to the sheet, and then the sheet is cooled and solidified. . In the prototype of the transport tray 11 thus obtained, a step 7c (see FIGS. 3 and 4) due to the shape of the mold 12 (see FIG. 4) is formed in the corner regulating portion 7. The step becomes smooth as shown in FIG.
[0020]
As shown in the plan view of FIG. 5 and the cross-sectional view of FIG. 7, the transport tray 11 manufactured as described above is configured such that the liquid crystal panel 1 is placed on the receiving portion 9 thereof. In the recess. At this time, the upper surface of the liquid crystal panel 1 substantially coincides with the height of the boundary between the lower slope portion 7b and the upper slope portion 7a as shown in the enlarged sectional view of FIG. Therefore, the liquid crystal panel 1 is not positioned above the height at which the lower slope portion 7b is formed.
[0021]
As shown in the enlarged plan view of FIG. 6, the lower slope portion 7b has a smaller curved surface than the upper slope portion 7a and has a wider flat portion, so that the side surface of the corner regulation portion 7 and the terminal end surface of the liquid crystal panel 1 are provided. Large contact area. Thereby, the holding force of the liquid crystal panel 1 is further improved. Accordingly, it is possible to prevent the liquid crystal panel with TCP 3 from climbing on the transport tray 11 or falling off due to vibration or impact during transport, and to prevent the liquid crystal panel 1 from being damaged.
[0022]
Further, since the distance D between the liquid crystal panel 1 and the TCP 2 in FIG. 6 can be reduced, the present invention is particularly applied to the liquid crystal panel 1 in which the panel itself is small and the display effective area is large as in recent years. It is valid.
[0023]
【The invention's effect】
As described above, according to the present invention, it is possible to increase the contact area between the side surface of the corner regulating portion of the transport tray that regulates the position of the display body (liquid crystal panel) to be stored and the outer shape of the display body. It is possible to improve the holding force against vibration and impact at the time, and reduce the breakage rate of the display body.
[0024]
In addition, by using a two-stage fillet structure for the corner regulating portion, it is possible to avoid problems such as chipping or breakage of a small-diameter drill to be cut in die machining of the transfer tray, and to improve die workability. .
[Brief description of the drawings]
FIG. 1 is a perspective view when a liquid crystal panel with TCP is placed on a transport tray of the present invention.
FIG. 2 is an enlarged view of a portion surrounded by a circle in FIG.
FIG. 3 is a perspective view of a prototype of a transfer tray, showing a portion corresponding to FIG. 2 in an enlarged manner.
FIG. 4 is a sectional view of a prototype of a transfer tray and a step of the tray, and shows a cross section of a portion corresponding to FIGS. 2 and 3;
FIG. 5 is a plan view of a transport tray on which a liquid crystal panel with TCP is mounted.
FIG. 6 is an enlarged view of a portion surrounded by a circle in FIG. 4;
FIG. 7 is a cross-sectional view of a transport tray on which a liquid crystal panel with a TCP is placed.
FIG. 8 is an enlarged view of a portion surrounded by a circle in FIG. 7;
FIG. 9 is a perspective view of a conventional transport tray on which a liquid crystal panel with TCP is mounted.
FIG. 10 is a perspective view of a transport tray on which a liquid crystal panel with a printed board is placed.
FIG. 11 is a perspective view when a liquid crystal panel with a TCP is placed on a conventional transport tray.
FIG. 12 is an enlarged view of a portion surrounded by a circle in FIG. 11;
[Explanation of symbols]
1 liquid crystal panel (rectangular plate)
2 Tape carrier package (attachment)
3 Liquid crystal panel with TCP 7 Corner regulating section 8 Side regulating section 7a Upper slope section 7b Lower slope section 9 Receiving section 11 Transport tray 12 Mold

Claims (2)

テープキャリアパッケージを表示体の端子部端面に接続してなるテープキャリアパッケージ付き表示体を凹所に収容して搬送させる搬送トレイにおいて、前記テープキャリアパッケージが前記表示体の端子部端面と重なってできるコーナー部近傍で前記表示体の側面に接触して位置規制するコーナー規制部を設け、このコーナー規制部の稜線が曲面に加工されるとともに、その曲面半径を前記コーナー規制部の深さ方向の下側が小さく上側が大きくなるように異なる寸法に設定したことを特徴とする搬送トレイ。In a transport tray for accommodating and transporting a display body with a tape carrier package formed by connecting a tape carrier package to a terminal end face of the display body in a recess, the tape carrier package may overlap with a terminal end face of the display body. A corner regulating portion for regulating the position by contacting the side surface of the display body in the vicinity of the corner is provided, and the ridge line of the corner regulating portion is formed into a curved surface, and the radius of the curved surface is set below the depth direction of the corner regulating portion. A transport tray characterized in that different dimensions are set so that the side is smaller and the upper side is larger. テープキャリアパッケージを表示体の端子部端面に接続してなるテープキャリアパッケージ付き表示体を凹所に収容して搬送させる搬送トレイにおいて、前記テープキャリアパッケージが前記表示体の端子部端面と重なってできるコーナー部近傍で前記表示体の側面に接触して位置規制するコーナー規制部を設け、このコーナー規制部の稜線は、前記凹所内で前記表示体を支える受け部の高さから所定の高さの部分の曲面半径を、それより上の部分の曲面半径より小さくなるように2段階のフィレット構造を備えた曲面に加工されていることを特徴とする搬送トレイ。In a transport tray for accommodating and transporting a display body with a tape carrier package formed by connecting a tape carrier package to a terminal end face of the display body in a recess, the tape carrier package may overlap with a terminal end face of the display body. A corner regulating portion for regulating the position by contacting the side surface of the display body near the corner is provided, and the ridge line of the corner regulating portion has a predetermined height from the height of the receiving portion supporting the display body in the recess. A transport tray characterized in that it is processed into a curved surface having a two-stage fillet structure so that the curved surface radius of a portion is smaller than the curved surface radius of a portion above it.
JP2002180257A 2002-06-20 2002-06-20 Carry tray Expired - Fee Related JP4073260B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7681376B2 (en) 2005-09-30 2010-03-23 Toshiba Matsushita Display Technology Co., Ltd, Manufacturing method for electronic, electric or other products such as flat-panel display devices and package therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7681376B2 (en) 2005-09-30 2010-03-23 Toshiba Matsushita Display Technology Co., Ltd, Manufacturing method for electronic, electric or other products such as flat-panel display devices and package therefor

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